Disk-harrow attachment.



A. SCHULTET DISK HARROW ATTACHMENT.

APPLICATION FTLED JUNE 1. 1917.

1,266,328. Patented Mayll, 1918.

UNiTED STATES drk'rnn'r ortica.

ANTHONY SCHULTE, OF HARTINGTON, NEBRASKA.

DISKHARROW ATTACHMENT.

Application filed .Tune 1, 1917.

To all whom t may concern:

Be it known that I, ANTHONY SCHULTE, a citizen of the United States, residing at Hartington, in the county of Cedar and State of Nebraska, have invented certain new and useful Improvements in Disk-Harrow Attachments; and he does hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in disk harrows and has for its primary object to provide additional disks which can be quickly and readily attached or detached from the disk gangs of any disk harrow of standard or wellknown construction, and by either attaching or detaching these additional disks, depending upon the degree of hardness of the soil, the resistance offered by the travel of the disks over the soil to the draft force can be regulated so that a predetermined draft force can be eiiciently used under varying conditions and in connection with the soil irrespective of Whether it is hard or com-V paratively soft.

A further-'object of the invention is to provide extension means adapted to be detachably connected to the outer ends of the disk gang axles, each of which carries one of the detachable disks.

A still further object of the invention is to provide a mud scraper bar adapted to be detachably connected to the scraper supporting bar of the hai-row and supported in position against the concaved face of the disk.

With these and other objects in view as will appear as the description proceeds, the invention comprises the various novel features of construction,y combination and ar- Y rangement of parts as will be more fully described hereinafter and set forth with particularity in the appended claims.

Referring to the drawings Figure 1 is a vertical sectional view through the end disk of one of the disk gangs of a disk harrow of standard conf struction, and showing my improved detachable disk secured to the disk axle.

Fig. 2 is a vertical sectional view through the detachable disk.

Fig. 3 is a side elevation of the non circular extension sleeve.

Specification of Letters Patent.

Patented May 14, 1918.

serial No. 172,250.

F l is an end view of the sleeve.

Fig. 5 is a side elevation of the extension stud.

F 6 is an end view of the stud.

Fig. 7 is a front elevation of the lock washer.

Fig. 8 is a side elevation of the spoollarge and small gangs of disks. The disk harrows embodying the small gangs are used with a draft force to harrow soil which possesses a great degree of hardness, while the harrows embodying these larger gangs of disks are used, with thel same draft force, to harrow comparatively soft soil.

It is my aim to dispense with the placing of two diEerent sizes of disk harrows upon the market and to provide additional disks which can be quickly and readily attached or detached from thegang of disks carried bythe smaller size of disk harrow.

Referring more particularly to the drawings, it will be noted that the reference numeral l Aindicates the outer end of the square axle of one of the disk gangs, and is provided at its outer terminal end with a reduced threaded shank 2. This squared axle l has mounted on its' adj acent end, the usual end disk 3, which is held in space relation to the adjacent disk of the gang by a spool spacing member 4. This end disk 3, is ordinarily held on the axle through the medium of a washer and nut, which is removed to allow of my improved construction of deal n the disk 3 in'position, are removed and a lock Washer 9 is positioned over the outer end of the axle 1 and normally rests against the end disk 3. rllhe outer tace ot the lock Washer 9 is provided with radially disposed teeth or serrations 10. This lock Washer is provided centrally with a square opening 11 so as to receive the end or' the square axle and prevent the lock Washer from rotating or turning independently ot the axle. Y

A polygonal or non circular extension sleeve 12 has one end threadedlymounted on the reduced shank 2 of the axlei and is 'turned up thereon into engagement with the shoulder of the axle formed by they reduced threaded shank 2 so as to make a rigid connection between the sleeve and the axle. rlhe reference numeral 13 represents a stud that is provided intermediate its ends with a square body portion 1/-1- Which carries a reduced threaded shank 15 at each end. @ne of the shanks 15 is threaded into the outer end of the non circular extension sleeve 12, and positioned over the body portion let ot the stud and the non circular sleeve 12 is a spool spacing member 16.

@ne end of this spacing'k member is provided with radially disposed teeth or serra tions 17 that are adapted to lockingly engage the radial teeth' 10 of the lock Washer 9. IThe opposite end ot the spacing member 16 is provided centrally With a square opening 1S tor the reception ot the squared body portion 1aot the stud 18, While the opening extending through the spacing member from the squared opening to the end ot the member containing the serrations non circular in cross sectional contour'so as to snugly receive the extension sleeve 12. By the construction of the non circular ybody portion 11i oi" thestud 13, the non circular extension sleeve 1Q and non rotatable lock asher 9, it will be apparent that they Will serve to hold the various relative parts against independent rotation ivith respect to each other and the harrow axle and its respective parts. V

The extra or additionalV disk 19 is provided centrally with a square opening 2O tor the reception ot the square body portion 1a ot the stud 13 and is adapted to rest against the outer end otV the spacing member 16. The numeral 21 represents the vfasher which vvas removed troni the end of the axle 1 prior to the attachment of the. additional disk and asshovvn is positioned over the outer end ot the square body portion le and against the disk 19. This Washer 91 is held in place by a nut 22 mounted upon the outer threaded shank 15 of the stud 13,' and this nut is the same nut that ivas originally mounted upon the reduced shank- 2 to hold tlhel Washer 21 in position against the end fi `is i 3.

ritter the extra disk 19' has been attached to the disk gang as shown, an extra mud screier Q3 having an upper angular end 24; is supported from Vthe bar l in position against the concaved surface of the disk so as to eitectively sc ape the soil or mud from the disk during its rota-tion and in a manner similar to the action 'of the standard mud scrapers as indicated by the numeral 5, rlhis angular end 2e ot the scraper is detachably connected to the scraper supporting bar 7 through the medium ot the same bolt S that is used'to secure the scraper 5 in position. Y

From the Jforegoing description it Will be apparent Lhat when it is desired to har'- roiv comparatively sott ground, the addi'- tional disk is attached in the position shown, and when it is desired to use the harrovv with comparatively hard soil, with thesame draft force, the additional disk 19 and its respective' supporting parts `are detached from the end ofthe axle 1. fitter the various relative parts, including the lock Washer 9 have been removed from the axle, the Washer 21 and the nut 22 are again arranged in position over the outer end of the axle 1 and on the threaded shank 2, respectively, into their Voriginal positions so as tosecurely hold and maintain the end disk' 3 in position. lllhile l have shownv an additional disk attached to one end ot one of the disk gangs, it is ot course to be understood that an additional disk may be attached or added to the outer end ot each gang `oty disks of the harrovr` It is alsolto be understood that while l have shown a single disk attached to and added to the outer end of one disk gang, tivo or `more disks may he added thereto by a slight changeY in construction and arrangement ot parts;

I claim:

1. 1n a disk harrovv, the combination With the axle and the outer disk carried thereby, ot an extension member attached to said axle, a spacing sleeve positioned over said extension member, ay disk mounted on the outer end ot said extension member, and means for securing said last named disk rigidly on the extension member and against said sleeve.

1n a disk harrow, the combination with the noncircularaxle and the outer disk carried thereby, of a noncircular extension member'detachably connected to said axle, a spacing sleeve positioned over said extension member, a disk mounted on the'extension member aga-inst said sleeve, and means tor rigidly securing said last named disk on said extension member.

ln a disk ha rrovv, the combination evivith the squared axle and its outer reduced threaded end, and the outer disk carried by said axle of a lock Washer positioned over the outer end ot said squared axle against said outer disk, a non circular sleeve connected to said reduced threaded aXle end,- a non circular stud connected to the outer end of said non circular sleeve, a spacing member positioned over said non circular sleeve and non circular stud, one end of said spacing member being provided With serrations adapted to engage said lck Washer, and eXtra disk positioned over 10 said non 'circular stud, and means for retain-` ing said disk in position on the non circular stud.

In testimony whereof I have signed my name to this specication in the presence of two subscribing Witnesses.

ANTHONY SOHULTE.

Witnessesz.

P. A. SULLIVAN, PAUL A. NORGKER.

Unplel o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, 1D. 0. 

